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Joakim

Joakim Cederkäll

Professor

Joakim

Decoherence in neutrino oscillation at the ESSnuSB experiment

Author

  • J. Aguilar
  • Y. Zhou
  • C. J. Carlile
  • J. Cederkall
  • P. Christiansen
  • M. Collins
  • K. E. Iversen
  • M. Lindroos

Summary, in English

Neutrino oscillation experiments provide a unique window in exploring several new physics scenarios beyond the standard three flavour. One such scenario is quantum decoherence in neutrino oscillation which tends to destroy the interference pattern of neutrinos reaching the far detector from the source. In this work, we study the decoherence in neutrino oscillation in the context of the ESSnuSB experiment. We consider the energy-independent decoherence parameter and derive the analytical expressions for Pμe and Pμμ probabilities in vacuum. We have computed the capability of ESSnuSB to put bounds on the decoherence parameters namely, Γ21 and Γ32 and found that the constraints on Γ21 are competitive compared to the DUNE bounds and better than the most stringent LBL ones from MINOS/MINOS+. We have also investigated the impact of decoherence on the ESSnuSB measurement of the Dirac CP phase δCP and concluded that it remains robust in the presence of new physics.

Department/s

  • Astrophysics
  • Department of Physics
  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration
  • LTH Profile Area: The Energy Transition
  • Industrial Electrical Engineering and Automation
  • Faculty of Engineering, LTH

Publishing year

2024-08

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2024

Issue

8

Document type

Journal article

Publisher

Springer

Topic

  • Accelerator Physics and Instrumentation

Keywords

  • Long-Baseline Neutrino Experiments
  • Oscillation

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479